Keywords polylactic acid-chitin plates;L929 mouse fibroblastic cells;cytotoxicity;cell relative growth rate assay;cell morphology test;

• 关键词聚乳酸-甲壳素接骨板;L929小鼠成纤维细胞;细胞毒性;细胞增殖度试验;细胞形态学试验;